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Hsin-Fu Yeh, Hung-I Lin, Cheng-Haw Lee, Kuo-Chin Hsu and Chi-Shin Wu
In this study, the stable isotope values of oxygen and hydrogen were used to identify the seasonal contribution ratios of precipitation to groundwater recharge in the Hualien River basin of eastern Taiwan. The differences and correlations of isotopes in ...
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Hsin-Fu Yeh and Jhe-Wei Lee
This study used stable hydrogen and oxygen isotopes as natural tracers to investigate their isotopic composition in precipitation, and in shallow and deep groundwater in the Penghu Islands in the Taiwan Strait. We aimed to understand the differences and ...
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Kate Andrzejewski, Greg Ludvigson, Marina Suarez, Paul McCarthy and Peter Flaig
We report estimated stable isotope compositions of Artic paleoprecipitation using phyllosilicates sampled from three paleosols and two bentonites in the Prince Creek Formation (Maastrichtian) in northern Alaska. Previous studies reported a deuterium exce...
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Yang Zhao, Yaning Chen, Shunjun Hu, Yanjun Shen, Fan Liu and Yucui Zhang
This research, conducted at the National Field Science Observation and Research Station of the Aksu Farmland Ecosystem in Xinjiang, was performed to partition evapotranspiration components, identify the main water absorption depth, and quantify the contr...
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Wieslaw Trela, Ewa Krzeminska, Karol Jewula and Zbigniew Czupyt
This report provides oxygen isotopes from apatite of late Middle and Late Ordovician conodonts from the southern Holy Cross Mountains in south-eastern Poland. It was a unique time interval characterised by a significant change in the Ordovician climate, ...
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Greg A. Ludvigson, Aaron F. Diefendorf, Marina B. Suarez, Luis A. González, Megan C. Corcoran, Kristen Schlanser, Peter P. Flaig, Paul J. McCarthy, Dolores van der Kolk, David Houseknecht and Margaret Sanders
We report estimated stable isotope compositions of depositional waters and paleoprecipitation from the Cretaceous Arctic to further elucidate the role of the global hydrologic cycle in sustaining polar warmth during that period. Estimates are based on ne...
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Paola Iacumin, Mattia Rossi and Gianpiero Venturelli
At present, the isotope ratio 18O/16O (in the text expressed as d18O) of carbonate (CO2-3)
CO
3
2
-
)
is usually determined by isotope ratio mass spectrometry measuring the CO2 gas
CO
2
gas
produced dissolving the CO2-3
CO
3
2
-
-bearing substance in...
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Zoltán Kern, István Gábor Hatvani, György Czuppon, István Fórizs, Dániel Erdélyi, Tja?a Kanduc, László Palcsu and Polona Vreca
It is generally observed that precipitation is gradually depleted in 18O and 2H isotopes as elevation increases (?altitude? effect) or when moving inland from seacoasts (?continental? effect); the regionally accurate estimation of these large-scale effec...
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Alessandro Zanazzi, Weihong Wang, Hannah Peterson and Steven H. Emerman
To investigate the hydrology of Utah Lake, we analyzed the hydrogen (d2H) and oxygen (d18O) stable isotope composition of water samples collected from the various components of its system. The average d2H and d18O values of the inlets are similar to the ...
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Valle Raidla, Joonas Pärn, Werner Aeschbach, György Czuppon, Jüri Ivask, Madis Kiisk, Robert Mokrik, Vytautas Samalavicius, Siiri Suursoo, Siim Tarros and Therese Weissbach
The Viimsi peninsula is located north-east of Tallinn, capital of Estonia. The Cambrian-Vendian (Cm-V) aquifer system is a sole source of drinking water in the area. Historically, the groundwater exploitation has led to freshening of groundwater in the p...
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Viorica Nagavciuc, Carmen-Andreea Badalu?a and Monica Ionita
The aim of this study is to investigate the stable isotope composition of precipitation and river water from the northeastern part of Romania. For this study, we collected monthly samples (for variable periods of time) of precipitation from six stations,...
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Zeynab Foroozan, Jussi Grießinger, Kambiz Pourtahmasi and Achim Bräuning
To develop multi-century stable isotope chronologies from tree rings, pooling techniques are applied to reduce laboratory costs and time. However, pooling of wood samples from different trees may have adverse effects on the signal amplitude in the final ...
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Valle Raidla, Joonas Pärn, Werner Aeschbach, György Czuppon, Jüri Ivask, Madis Kiisk, Robert Mokrik, Vytautas Samalavicius, Siiri Suursoo, Siim Tarros and Therese Weissbach
The Viimsi peninsula is located north-east of Tallinn, capital of Estonia. The Cambrian-Vendian (Cm-V) aquifer system is a sole source of drinking water in the area. Historically, the groundwater exploitation has led to freshening of groundwater in the p...
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Erwan Martin
The impact of volcanic eruptions on the climate has been studied over the last decades and the role played by sulfate aerosols appears to be major. S-bearing volcanic gases are oxidized in the atmosphere into sulfate aerosols that disturb the radiative b...
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Arshad Ali, Iffat Jabeen, Sobhi J. Nasir and Neil R. Banerjee
We report the equilibration temperatures derived from the oxygen isotope thermometry of pyroxene-olivine pair from the Dar al Ghani (DaG) 476 (1200 +105/-90 °C) and Sayh al Uhaymir (SaU) 008 (1430 +220/-155 °C) meteorites showing a difference of over 200...
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Arshad Ali, Iffat Jabeen, Sobhi J. Nasir and Neil R. Banerjee
We report the equilibration temperatures derived from the oxygen isotope thermometry of pyroxene-olivine pair from the Dar al Ghani (DaG) 476 (1200 +105/-90 °C) and Sayh al Uhaymir (SaU) 008 (1430 +220/-155 °C) meteorites showing a difference of over 200...
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Xinyi Wang, Weifang Qiao, Jing Chen, Xiaoman Liu and Fang Yang
Geothermal water samples taken from deep aquifers within the city of Kaifeng at depths between 800 and 1650 m were analyzed for conventional water chemical compositions and stable isotopes. These results were then combined with the deuterium excess param...
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Seiji Maruyama and Hisaaki Kato
We examined the oxygen and hydrogen isotopic ratios of surface waters and groundwaters in the catchment of Laguna Lake, Republic of the Philippines, to identify the types of water that combine and control these ratios in the lake water. The oxygen and hy...
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Seiji Maruyama, Hisaaki Kato
Pág. 1 - 15
We examined the oxygen and hydrogen isotopic ratios of surface waters and groundwaters in the catchment of Laguna Lake, Republic of the Philippines, to identify the types of water that combine and control these ratios in the lake water. The oxygen and hy...
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Julián González-Trinidad, Anuard Pacheco-Guerrero, Hugo Júnez-Ferreira, Carlos Bautista-Capetillo, Arturo Hernández-Antonio
Pág. 1 - 12
Environmental isotope tracers have been a useful tool in providing new insights into hydrologic processes. In Mexico, there have been several studies reporting different values for d18O and d2H for certain geographical areas. The objective of this study ...
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